关键词：能源分析；能源效益；节能；能源消耗
摘 要：The Energy Efficient Buildings Hub (EEBHub) uses Sankey diagrams to visually analyze energy use in the building of its headquarters, Building 101 (B101). This report describes B101 energy consumption and passive energy exchanges with the surrounding environment and through the building. For this initial Sankey diagram exercise, completed on January 31, 2013, the data/model integration was primarily performed by calibrating the EnergyPlus model to measured energy consumption data. The annual model is used as a starting point, while iterations of the EnergyPlus simulation provide results for January and July to demonstrate how energy use changes throughout the year. Annually, the Sankey diagram shows energy consumption from electricity and natural gas, as well as the end uses. The heating, cooling, and air handling are the largest sources of energy usage. Interior lighting and equipment are also considerable consumers of electricity. Seasonally, the trends of energy consumption are visually demonstrated by comparing January and June Sankey diagrams. As expected, winter requires heating via the boiler as the largest energy consumer, while much of the building heat is lost is to the exterior. The summer months have several sources of heat, both exterior and interior, to the building. Cooling is the largest consumer of electricity in July, followed by interior lighting and equipment, and the air handling. From these seasonal diagrams, it is easy to recognize the buildings interactions with its environment, and the strain that induces on its energy consumption. These visualizations help identify where equipment modifications (with better efficiencies) can reduce energy consumption. This report demonstrates the integration of multiple sources of data to output a broad picture of engineered and environmental fluxes of energy through the EEBHub. The outcomes of this project are to provide a building energy analysis on B101 that helps identify large sources of energy consumption, gaps in data, and provide opportunities to deploy energy saving technologies.